![Show Menu](styles/mobile-menu.png)
![Page Background](./../common/page-substrates/page0011.jpg)
Page 33
Notes:
allied
academies
February 25-26, 2019 | Paris, France
Materials Science and Engineering
2
nd
International Conference on
Journal of Materials Science and Nanotechnology | Volume 3
L
ayered Double Hydroxides (LDHs) are composed of the
alternating positively-charged mixed metal (typically, MII-
MIII) hydroxide layers and the interlayersoccupiedbyanions and
watermolecules. Themetal cations in the layers are coordinated
by O-H units forming 2D structures in which the oxygen
octahedra are edge-linked. LDHs find a wide use in catalysis and
as anion exchangers and adsorbents. Magnetic, luminescent
and others) cations in the hydroxide layer due to their individual
or cooperative phenomena can induce new effects and novel
functionalities in these materials. The characteristic feature
of such modified LDHs is that their physical and chemical
properties are tuned by means of continuous variation of the
anion content in the interlayer. Moreover, provided that at
least one of MII and MIII is magnetic, a MII-MIII cation ordering
can result in formation of various magnetic frameworks. In
this respect, LDHs are convenient and unique objects for the
experimental modelling of the 2D quantummagnets and other
cooperative effects. Because of the layered nature, the LDH
crystallites are very anisotropic. Therefore, such objects are
suitable for formation of arranged nanostructures. An ability of
LDHs to intercalate anion-molecular complexes offers also the
opportunity for a 2D arrangement of the species which are the
independent functional units such as magnets, ferroelectrics,
photovoltaics. Ordered arrangement of the functional units
in interlayer are expected to result in enhancement of the
respective effects and even to induce new effects.
Speaker Biography
Andrei N Salak completed his PhD in 1994 at the Institute of Solid State and
Semiconductor Physics (Minsk, Belarus). In 2002, he received a post-doctoral position
in CICECO - Centre for Research in Ceramics and Composite Materials at the University
of Aveiro (Aveiro, Portugal). At present, he is an Invited Researcher at CICECO. He
specializes in crystal structure determination and characterization dielectric and
magnetic properties of inorganic solids, particularly perovskite-like materials and
layered ion exchangers. He is a co-author of more than 100 papers in international
peer-reviewed journals with over 1200 citations.
e:
salak@ua.ptAndrei N Salak
University of Aveiro, Portugal
Multifunctional layered double hydroxides